I went to change the diff fluids last wknd. The rear went fine but the front drain plug wouldn't budge. Heated that thing up and it still wouldn't move for me. The hex plug started to get boogered so I stopped. Found some solutions online and bought an extractor set and the lexus drain plug. The 7/16 extractor did the trick. It bit so hard that i now need to find a way to free it from the plug. LOL. Anyways the new plug will make this a lot easier next time.